<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="图书标题" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入图书标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="图书作者" prop="author">
        <el-input
          v-model="queryParams.author"
          placeholder="请输入图书作者"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="分类" prop="categoryId">
        <el-select v-model="queryParams.categoryId" placeholder="图书类型" clearable>
          <el-option
            v-for="category in categoryOptions"
            :key="category.id"
            :label="category.categoryName"
            :value="category.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['library:book:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['library:book:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          :disabled="multiple"
          @click="handleBorrow"
          v-hasPermi="['library:book:borrow']"
        >借阅
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="bookList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="序号" align="center" prop="id" width="60"/>
      <el-table-column label="图书标题" align="center" prop="title"/>
      <el-table-column label="作者" align="center" prop="author"/>
      <el-table-column label="出版社" align="center" prop="publisher"/>
      <el-table-column label="图书类型" align="center" prop="categoryId" width="80">
        <template slot-scope="scope">
            <span v-for="category in categoryOptions">
              <span v-if="category.id == scope.row.categoryId">{{ category.categoryName }}</span>
            </span>
        </template>
      </el-table-column>
      <el-table-column label="库存数量" align="center" prop="stock"/>
      <el-table-column label="创建时间" align="center" prop="createTime" width="180"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleBorrow(scope.row)"
            v-hasPermi="['library:book:borrow']"
          >借阅
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['library:book:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['library:book:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改图书对话框 -->
    <el-dialog :title="boxTitle" :visible.sync="open" width="780px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="12">
            <el-form-item label="图书标题" prop="title">
              <el-input v-model="form.title" placeholder="请输入图书标题"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="作者" prop="title">
              <el-input v-model="form.author" placeholder="请输入图书作者"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="图书类型" prop="category">
              <el-select v-model="form.categoryId" placeholder="请选择图书类型">
                <el-option
                  v-for="category in categoryOptions"
                  :key="category.id"
                  :label="category.categoryName"
                  :value="category.id"
                />
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :span="12" v-if="boxTitle == '添加图书'">
            <el-form-item label="总数目" prop="total">
              <el-input v-model="form.total" placeholder="请输入图书总数"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item label="出版社" prop="publisher">
              <el-input v-model="form.publisher" placeholder="请输入出版社名称"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="出版日期" prop="publishDate">
              <el-date-picker
                v-model="form.publishDate"
                type="date"
                placeholder="选择日期"
                format="yyyy-MM-dd"
                value-format="yyyy-MM-dd">
              </el-date-picker>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { addBook, delBook, getBook, listBook, updateBook, borrowBook} from '@/api/library/book'
import { listCategory } from '@/api/library/category'

export default {
  name: 'Book',
  dicts: ['sys_notice_status', 'sys_notice_type'],
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 图书表格数据
      bookList: [],
      // 弹出层标题
      boxTitle: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        title: undefined,
        author: undefined,
        categoryId: undefined,
      },
      categoryOptions: [],
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        title: [
          { required: true, message: '图书标题不能为空', trigger: 'blur' }
        ],
        categoryId: [
          { required: true, message: '图书类型不能为空', trigger: 'change' }
        ],
        total: [
          { required: true, message: '图书总数不能为空', trigger: 'blur' }
        ],
        author: [
          { required: true, message: '图书作者不能为空', trigger: 'blur' }
        ],
        publisher: [
          { required: true, message: '出版社名称不能为空', trigger: 'blur' }
        ],
        publishDate: [
          { required: true, message: '请选择出版日期', trigger: 'change' },
          {
            pattern: /^\d{4}-\d{2}-\d{2}$/,
            message: '日期格式必须为 yyyy-MM-dd 喵~',
            trigger: 'change'
          }
        ],
      },
      publishDate: undefined,
      publisher: undefined,
    }
  },
  created() {
    this.getList()
    this.getCategoryList()
  },
  methods: {
    /** 查询图书列表 */
    getList() {
      this.loading = true
      listBook(this.queryParams).then(response => {
        this.bookList = response.data
        this.total = response.total
        this.loading = false
      })
    },
    getCategoryList() {
      listCategory().then(response => {
        this.categoryOptions = response.data
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: undefined,
        boxTitle: '',
        title: undefined,
        categoryId: undefined,
        author: undefined,
        publisher: undefined,
        publishDate: undefined,
        stock: undefined,
        total: undefined,
        status: '0'
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length != 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.boxTitle = '添加图书'
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      const id = row.id
      getBook(id).then(response => {
        this.form = response.data
        this.open = true
        this.boxTitle = '修改图书'
      })
    },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.id != undefined) {
            updateBook(this.form).then(response => {
              this.$modal.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            addBook(this.form).then(response => {
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids
      this.$modal.confirm('是否确认删除图书编号为"' + ids + '"的数据项？').then(function() {
        return delBook(ids)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },

    /** 借阅按钮操作 */
    handleBorrow(row) {
      const id = row.id || this.ids
      this.$modal.confirm('是否确认借阅图书编号为"' + id + '"的数据项？').then(function() {
        return borrowBook(id)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('借阅成功')
      }).catch(() => {
      })
    }
  }
}
</script>
